Home / 20,813,026.40-31,228,870.80-9,447,624.80

Finding the Fourth Proportional to 20,813,026.40, 31,228,870.80 and 9,447,624.80

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Solution

The fourth proportional to 20,813,026.40, 31,228,870.80 and 9,447,624.80 is: 14,175,672.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,813,026.40 : 31,228,870.80 = 9,447,624.80 : x
  2. Step 2: Convert to fraction form
    20,813,026.40/31,228,870.80 = 9,447,624.80/x
  3. Step 3: Cross multiply
    20,813,026.40x = 31,228,870.80 × 9,447,624.80
  4. Step 4: Simplify right side
    20,813,026.40x = 295,038,654,246,075.88
  5. Step 5: Solve for x
    x = 295,038,654,246,075.88/20,813,026.40
  6. Step 6: Final answer
    x = 14,175,672.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.